"Well, this was all rather amusi.. interesting. Acererak, once again your actions have served me far better than they have served yourself. The traitor is permanently dead.
It's all for the best for Oerth, he was far too unbalanced to be in a posititon of power. Acererak did us all a favour. Now lets hunt down that crazy bonehead!"

"I liked the Wanderer and I will still honour his request. As to Acererak he must die now! That is not the sort of thing I can stand for he devoured the soul of an innocent in my sight while he was weak and helpless."

I devote everything I have to finding old boneface.
(Depending on whether or not I find him I may need to change my template)

Also Edena 10th level magic is becoming not worth the sacrifice. The catastrophe I threw did nothing to Acererak he just got more powerful. It can no longer be used for scrying reliably and a Mythal cannot even stand against Shade who get more PL than they lost in that battle back anyway.